Grinding-mill.



T. M. LYON.

GRINDING MILL.

APPLICATION FILED MAY 6, 1912.

1,063,810. Patented June 3,1913.

www

P. M. LYON.

GRINDING MILL.

APPLIOATION FILED MAY 6, 1912. 1,063,810. Patented June 3, 1913.

5 SHEETS-SHEET 2.

wilma/Mo I Y\ "OLUMBIA PLANOGRAPH co., WASHINGTON. D. cv

F. M. LYON.

GRINDING MILL.

APPLIOATION FILED MAYe, 1912.

1,063,81 O. Patented June 3, 1913.

5 SHEETS-SHEET 3.

F. M. LYON.

GRINDING MILL.

APPLICATION FILED NAYS, 1912. 1,063,810. Patented June 3, 1913.

5 SHEETS-SHEET 41 Gl/vfimooeo F. M. LYON.

GRINDING MLL.

APPLICATION FILED MAY e, 1912.

1,063,810, Patented June 3, 1913.

5 SHEETS-SHEET 5.

mm2 "llllumw COLUMBIA PLANOGHAPH co .wAsmNGToN, n. c

FRED IVI. LYON, OF PONTIAC, ILLINOIS.

GRINDING-MILL.

Specification of Letters Patent.

Patented June 3, 1913.

Application filed May 6, 1912. Serial No. 695,456.

b all ywhom 'if ymay concern.'

Be it known that I, FRED M. LYON, a citizen of the United States, residing at Pontiac, in the county of Livingston and State of Illinois, have invented certain new and useful lmprovements in Grinding-Mills; and l do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

'lhis invention relates to grinding mills and has for an object to provide a mill ernbodying improved features for cutting and grinding material, especially corn in the cob, corn in the cob with the husk on, and Kafir corn in the head.

A further object of the invention is to provide a mill having improved shears for cutting the material. and with improved means for adjusting the shears to prevent the necessity of interfering with the adjustment when the shears are removed from the mill.

A further object of the invention is to provide, specifically, improved means for forcing' the material contained in the hopper into the grinding part of the mill.

A further object of the invention is to provide a mill having a housing with shears rotating within the housing. such shears eX- tending substantially to the inner periphery of the housing to leave. no space between such housing and theI extremities of the shears through which material may pass without being acted upon by the shears.

A further object. of the invention is to provide in a vertical mill a plurality of independent cutting. grinding and shearing devices some of which are rotated and some of which are stationary, with the rotatable members rotated from a single vertical central shaft and providing means whereby the upper part of such shearingl means may be lifted bodily from the extremity of such shaft.

A further object of the invention is to provide a single vertical central shaft with a cone mounted upon said shaft as a gimbaljoint, said cone carrying cutting, grinding and crushing devices capable of self adjustment by the tilting of the cone.

With these and other objects in view the invention comprises certain novel constructions, combinations and arrangement of parts as will be hereinafter more fully described and claimed.

i ln the drawings:'Figure 1 is a perspective view of the improved mill with the hopper turned back\\'ardly upon its hinge showing the major port-ion of the grinding elements exposed aty the top of the housing and at the bottom of the inverted hopper. Fig. 2 is a vertical diametrical sectional view ot' the mill. lt'ig. 3 is a perspective view of the lower series of self-contained shears. Figs. -t to 13 inclusive are respectively perspective views of the several cuting, grinding and shearing elements. Figs. 14 and 15 are perspective fragmentary views with the upper end of the force feed ar rangement elements separated. Fig. 16 is a perspective view of the upper end of the driving shaft.

Like characters of reference indicate corresponding parts throughout the several. views.

The improved mill which forms the subject matter of this application is adapted for being' driven by any form of drive such as belt. gear' or the like but is here shown as a sweep drive and as illustrated in the drawings of the present application comprises a base Q0 with the bull-wheel 21 mounted thereon and confined to rotary orbit by a plurality of pinions Q2 which said pinions are, journaled upon the base by means of journal bolts 2&3. Above the bullwheel the superstructlu'e comprising the housing' Qt is erected being supported upon the journal bolts Q?) and comprising brackets 253 which extend outwardly over the bullwheel 21 to hold the said bull-wheel from upward displacement.

To actuate the mill a sweep 2t) is rigidly secured to the bull-wheel Q1 and braced in the usual manner as by the brace 27.

(flentrally of the bull-wheel and equi-distant between the journal bolts Q3 a central drive .shaft 2S is journaled iu the base 20 supported by a bearing lever 29 and adjustu ed by the handwheel I3() and screw bolt 3l in substantially the usual and ordinary manner of adjusting grinding hurs in grinding mills. The shaft Q8 has a pinion 32 splined thereon which said pinion is intergeared with and receives motion from the pinions Q2. It will tlufrefore be apparent that as the sweep 26 is rotated by any ordinary motive power the bull-wheel 2l is rotated, ro-

tiltingI therefrom the pinions thi` pinion Il! and the shatit f' whieli rotates iii its, bearing` in the leyer 2i). ril`he .shatt 2S ex tends up\\ardly through the eonyex bottoni it?) ot the niill wliieh said bottoni terminates in a disehai'ge `spout its" at one ,side for the diseharge ot the ground niaterial through the bullwlieel l between the pinions 2 into a reeeptaele 35. .it its upper end the drinl shaft 2S is proyided with a squared portion t below wliieh is a larger angular portion 23T the latter teriiiiiiat'injg' in a shoulder 'r while the squared portion terniinati'x,s in shoulders Slt?. lvpon the anguliir portinn Il?" and Seated upon the shoulders En is a eolie shaped nieiiiber lt). ,shown in perspei'tii'e in Fig. T. whieli .said eolie shaped nienioer proyided with an opening |71 in itsape.\1pro` portioiied to tit harsely oyer the angular portion i'i' ot the shaft and to be rotated therewith l'orniing a giiiibal joint Ytor seit adjust nient. The eoiie shaped nieniber lt) is the nieniber to which the greater part ol the grinding. {she-tiring and crushing nieiiiliirf, are atlaelied and whieli torins the rotating base 'tor earrying sut'h nienibers.y the lginiiia'i joint permitting the nieiiibers to adjust theinselyes :is the shat't rotates. The tii'st otf the rotatable parts Carried direetly by the eone is the grinding ring or bur l2 shown in perspeetiye in Fig. S. whieli operates` inside of and in the usual spared relation to the opposing ring t wliieli is` ol' sulistaiiA tially the usual and ordinai'y eonstruetion. The j grindiirgI rings t2 and 23 eoniprise the ii'ieans t'or eonipleting the grinding oI the niaterial the disintegration ot whieh is be- `gun by the shearing. eutting and erusliing devices above and which will be hereinafter niore fully deseribed. The grinding ring t2 is earried by the eone 4t) by proyiding the eolie-1t) with notehes Ytft Vt'oi'iiied iii the Hangt'- l5 at the base otl said cone and the grinding ring` 42 provided with lugs to engaging in ,Maid notihes lil. Yllie bene ot the eolie is also proyided with lugs t7 downwardly extending and engaging); and rotating a .spider t* wliieh ,serves to uioye the ground nniiei' il about upon the eonyex tioor to di the saine by eeiitii'l'ugal Yl'oree or by pressure i'roiii aboye through the spout Si.

Next1 above the grinding ring t2 a toi-ee ring 49 is earried. ls'ui'li t'oree ring being shown in perspective in Fig. t). rl`he tortue ring` is provided about its periphery with a pluralityv ot inelined foree ribs 5t) wliieh when rotated tend to erusli. reduey and Ytoi-ee rmaterial into and between the grinding The toree ring tu is proi rings 42 and gJfi. yided with an annular upstanding rib 3l upon whieli is located the stationary sh ar nieniber shown in perspeetiye in Fig. it). The position otl the Stationary shear ineinber 5'2 is such that the fort-e ring;` tt) niay rotate without rotating such shear nieinber,

l whieh shear nieniber is proyided with lugs i pei-inns the superpi -1ed einiir ring' 5 L shown in persilieetiye in Fi 1'? tu rotate npnn and in eoiitai't tl. upper ,surt'aee ot' the ltationary shear ring ij. ilie l'it ring lt.)

with

i pl'u'i'ided with a set-i nd annular rib 53 in terr: `ed ut .t or; oppiisite finie-i. partii'ln liirly a shown iu it. and the `shear ring` .at is proyided 'with lugs fil' adapten to pass through the interrupted pnrtioiis ot' the rib Dfi and engage under oierhangs 3S. The t'-yei'liangnL 5F are proyided with set sr'i'ews ifi wliii-h are appl'ed upv-iii the lugs` ai" nt' the shear ruig l! 'in a j the said ring` fil niore er lesa tightly i'ie to the .stationary .shear ruig' Si lt will be noted espeeially troni Fig. i tiat ilie 'terre ring il). .-.ationar f and rotatii ,sin-'zii' rii 'iY-lV niay be eyed bodily Vtr oni ine niill without iii- 'ei'iiig' with tht= adjuatiiieiit ot the shear y thil ,set wrevs il. in niills eoiitaining ,hear nierhaiiisin it is tizuiid neeessary upon ren oy ing the nitwhanisni troni the iiiill propri' to renioye the units otl the ,shear deyiees ,separately und when the saine are returned to the niill it is a iiiatter ol' eonsiderable diti'iiulty to eeure the proper adjusts iin-nt ot the shear. By th i arrangement of the paris in an oi'ganiI/.ed struftur as shown in Fig. l :ill iiiay be reiiioyed V.troni thi` iiiill an ,sueli strueture without in any way intertering 'with the desired adjustment.

l'pon the top ot the eone 40 a breaking and erusliing nieniber t'it)7 Shown in perspective in Fig, 1l. is eniployed, sueh i'frushing nieniber being secured to the ('oiie by nieans etc `serews (it inserted through ears (S2, sueli fai-s being :shown in Fig. 1l. and the bolts being shown iii Fig.

The parts enumerated are the parts whieh are arried by the sliatt Q8 within the hous ing fsl. .`\bo\'e the liou -iugI 'it a body o?) is hinged at tt and held in position by nieaiis ot a bolt (33 engaging spaeed lugs (St. lithiii the body tj a ,shear spider 0T, shown in pernptutiye in Fig. t. is eniployed sueh shenr nieniber beingi` stationary and eonneeted with the, inner periphery ot the body (33 by nienns of lugs ($8 fornied therein under wliieli the shouldered extremities (if) of the said sli ar spider (3T engage. The shear spider (3T is provided willi a large Central opening Tt) in which is niounted n 'ap Tt. shown in perspeetiye'in Fig. 5, ,said eap haying an annular shoulder T2 to perniit the said Cap to rotate within the opening' T() ot the :lapide and provided upon its under side with :i squared socket T3 proportioned to engage the upper squared end 3G of the shaft 28 and to be rotated thereby. Upon its upper side the cap 71 is provided with a squared shank 74 proportioned to engage in the squared socket 75 of the shear spider 76, shown in perspective in Fig. 13, and such spider is retained thereon by means of a bolt 77 having a nut 78 rigidly secured upon said bolt and with its screw threaded extremity 79 inserted through the central opening 80 of the spider 76 and engaged in the screw threaded opening 81 of the cap. By applying a wrench to the squared part 78 the bolt 77 may be rotated so that the threaded extremity 79 exerts tension upon the shear spider 76 by the nut 78 bearing upon the top of such spider.

To cover the squared part 78 and prevent it from catching the material acted upon as well as prevent the part 78 being rotated to interfere with the adjustment, the upper side of the socket 75 is provided with lugs 82 which are engaged by the serrated edge 83 of a cover 84 shown in perspective in Fig. 6. The cover 84 is provided upon its upper side with a. radial furrow 85 and a cotter pin 86 is inserted through the bolt 77 and engaged in the furrow 85 to prevent the cover 84 from becoming disengaged from the lugs 82 of the spider 76. By this arrangement the cover 84 which engages the nut 78 prevents the said nut 78 and bolt 77 from rotating to interfere with the adjustment of the shear device composed of the shear spiders 76 and 67.

The shear spider 76 is provided in its arms with slots 87 which engage the lower extremities of the adjustable forcing worm members 88. One of the worm members 88 is provided at its upper end with a hole 89 adapted to embrace the bolt 77 and provided upon one side with a convex engaging surface 90. The other force worm member 88 is provided at its upper end with a concave head 91 proportioned to fit over the convex surface 90 and with a bolt 92 passing through the head 91 to permit the two members 88 of the worm to be adjusted. The lower ends of the worms engage the slots 87 and the adjustment secured is retained by bolts 98, shown particularly in Fie. 2.

bove the body 63 a hopper 94 is erected having spiral ribs 95 secured therein which coact with the force worm members 88 so that as the latter revolve carried by the shear spider 76 the action is to force the maferial contained in the hopper down into position to be engaged first by the shear comprising the members 76 and 67, next into position to be engaged by the breaking and crushing member 60, then to the shears composed of the members 52 and 54, then to the force ring 49 which forces the material into and between the grinding rings 42 and 43.

Especial attention is invited to the fact that the shears above referred to are provided with such shearing blades as extend substantially to the very wall of the interior of the housing and body. By the arrangement of the shears of such diameter it is possible to prevent the passage of any material about the ends of the shear blades without being acted upon by such shears. By the adjustability of the force worms 88 a greater or less amount of power or forcing action can be applied to the material therein, depending upon the material being ground as well as other circumstances connected with and surrounding the manipulation of such material.

As will be noted from Fig. 1, the hopper with the body may be turned backwardly upon the hinge carrying therewith the upper shear and the force worm and exposing for access the crushing member which when removed permits the ready and convenient removal of the self-contained shear structure below both without disturbing in any manner the adjustment already secured upon the upper or lower shears. By this arrangement the outer and inner grinding rings are almost immediately accessible so that either or both may be removed in a very few moments after the hopper has been turned back to the position shown in Fig. 1.

I claim 1. In a grinding mill, a central shaft, a shear mechanism comprising engaging members, means to rotate one of said members, means to retain the other of said members against rotation, means to adjust the tension of one shear on the other, and means permitting the removal of the shear structure without interfering with such adjustment.

2. In a grinding mill, a housing, a centlal driving shaft journaled in the housing, a shear member' engaging the housing to prevent such member from rotating, a second shear member carried by and rotating` with the shaft, means to exert tension ot' one shear upon the other, and means permitting the removal of both shears from the housing without disturbing the tension.

8. In a grinding mill, a housing, a power shaft journaled centrally within the housing. a force ring carried by the shaft, a shear member disposed upon the force ring, means carried by the housing` for engaging the shear member to prevent its rotating, a second shear member disposed upon the first mentioned shear member, means carried by the force ring for exerting tension upon the .second mentioned shear member to adjust the said shear member relative to the first mentioned shear member, and means whereby the force ring and the two shear members may be removed from the housing without varyingr the tension of the shear members.

4. ln a grinding mill, a housing, a shaft journaled to rotate vertically within the housing, a cap removably carried upon the upper extremity of the shaft, a shear member embracing the cap and held against rotary motion` a second shear member carried by and rotating with the cap, means to exert tension between the shear members, and means to remove the cap from the shaft without varying' the tension between the shear members.

ln a grinding mill, a housing', a shaft Iiournaled vertically within the housing', a body hinged upon the housing', a shear member rigidly carried by the body and held against rotation, a cap mounted to rotate within the shear member and provided with means for engaging with and being;` rotated by the shaft, a sceond shear member carried and rotated by the eap, and means to vary the tension between the shear members.

o. ln a grinding mill. a body, a shaft journaled to rotate vertically within the body, a shear member iarried by and rotating with the shaft, force worm members farried by the shear member, and means to adjust the force worm members radially upon the shear member.

T. ln a grinding' mill, a body, a shaft journaled to rotate centrally within the body` a shear member carried rigidly by the body and held against rotation, a second shear member mounted upon the first mentioned shear member, means forming eonneetion between the .shaft and the second shear member, force worln members carried by the second mentioned shear member and extending upwardly above, the body, and means to adjust the worm men'lbers radially upon the shear member.

8. ln a ,grinding mill, a housing, a body hinged upon the housing, a shear mechanism carried by the housing, means carried by the body when in closed position to engage one of said shear members and hold such shear members against rotation, means to remove the shear mechanism from the body and housing as an organized structure, a second shair mechanism carried by the body and movable therewith, and means conneetimgr the movable members of the two shear mechanisms to be driven from a single power shaft.

9. ln a grinding mill, a housing, inclined ribs formed in the interior of the housing, a power shaft journaled centrally within the housing, a force ring carried by the shaft. a shear member disposed upon the force ring'. the said ribs being interrupted at the point of passage of the shear member. means carried by the housing` for engaging the shear member to prevent its rotation. a second shear member disposed upon the tirst shear member, means carried by the force ring for exerting tension upon the second mentioned shear member to adjust said shear member relative to the first mentioned shear member, and means connecting the foree ringl and the two shear members whereby the structure may be removed from the housing as a unit without varying the tension of the shear members.

ln testimony whereof l affix my signature in presence of two witnesses.

FRED M. LYON.

lllitnesses:

l l. MYERS, l. D. HILLS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of IPatents, Washington, D. C. 

